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Congenital Diseases
Congenital Diseases

... from the aorta to the pulmonary artery pulmonary artery pressure may be elevated to systemic levels during both systole and diastole risk for the development of pulmonary vascular disease if left unoperated ...
AHA News Release Masthead
AHA News Release Masthead

... Sudden cardiac arrest is most often caused by an irregular heart rhythm called ventricular fibrillation. This irregular rhythm causes the heart’s electrical impulses to become chaotic, causing the victim to collapse and stop breathing normally. Unless a normal heart rhythm is restored, death will fo ...
Location of the heart
Location of the heart

... The degree of ventricular stretching during ventricular diastole ...
Surgical Treatment of Ischaemic Heart Disease
Surgical Treatment of Ischaemic Heart Disease

... Best results are for open surgery using cardiac arrest (30 yrs experience)  Newer techniques such as Beating Heart Surgery, Minimal Access CABG, Robot-assisted CABG, are all in early stages  For multivessel disease, surgery still superior to angioplasty/stenting ...
Science Of Ultra UCD 27 Heart Health
Science Of Ultra UCD 27 Heart Health

... fibrillation when resting, such as during sleep while the high heart rate athletes have atrial fibrillation when their heart rate gets high, such as during exercise. They are very different conditions and treated differently. One is not necessarily a greater concern than the other for long term heal ...
Title: The Heart, Introduction and Evolution
Title: The Heart, Introduction and Evolution

... a 4 chambered heart but that the ventricular wall separation is incomplete (ventricular septum (wall) defects as well as atrioventricular septum defects are common in people) Both arguments are reasonable c- As in amphibians there is mixing of the oxygen rich and oxygen poor blood. However, this mix ...
Fortis Escorts Heart Institute implants India`s first Subcutaneous
Fortis Escorts Heart Institute implants India`s first Subcutaneous

... diseases can be treated with this implant. The technique offers benefits such as lower risk of infection, no puncturing of the veins in the heart, and lesser chances of complications, over time. However, despite its advantages as the device cannot pace the heart, some patients who need the ICD are ...
Heart Lab Outline
Heart Lab Outline

... 1. To understand he structure of the heart 2. To identify the numerous chambers, valves and structures of chambers of the heart 3. To trace a drop of blood though the heart identifying all locales and regions 4. To correspond the heart model to the dissection OUTLINE I. ...
Heart transplantation
Heart transplantation

... When the heart consistently must work harder to pump, over time it becomes enlarged (hypertrophy) and ineffective in its pumping action. ...
Cardiovascular 12 – Regulation of the CVS
Cardiovascular 12 – Regulation of the CVS

... Sympathetic stimulation results in an increased heart rate and also causes a large Ca2+ influx into the cells on influx as well as increasing intracellular stores of Ca2+. This results in an increased force of conduction. Stroke volume is also increased with increased venous return and decreased int ...
Coronary Bypass Surgery
Coronary Bypass Surgery

... –Result of plaque buildup in your coronary arteries that leads to blockages. –Hardening of arteries from plaque is called Atherosclerosis ...
Sudden Cardiac Arrest Information Sheet
Sudden Cardiac Arrest Information Sheet

... As the leading cause of death in the U.S., there are more than 300,000 cardiac arrests outside hospitals each year, with nine out of 10 resulting in death. Thousands of sudden cardiac arrests occur among youth, as it is the #2 cause of death under 25 and the #1 killer of student athletes during exer ...
CHEST PAIN Introduction
CHEST PAIN Introduction

... – Function of left ventricle estimated by blood pressure – Left ventricle not pumping adequately: low systolic blood pressure ...
Circulation - Heart 13 slides
Circulation - Heart 13 slides

... Arteries, capillaries, and veins help to transport nutrients and oxygen TOWARD the body cells, while taking carbon dioxide and other wastes AWAY from body cells. What are some characteristics of arteries, capillaries, and veins? ...
Dilated cardiomyopathy - SLR Cardiology Referrals
Dilated cardiomyopathy - SLR Cardiology Referrals

... levels of carnitine in the blood has been detected in some Boxers and Springer Spaniels with DCM, and some Cocker Spaniels with DCM may have low blood taurine levels. Since the disease is much more common in some breeds than others genetic factors are probably important. In most cases of DCM there i ...
autonomic nervous system
autonomic nervous system

... 3. What are the substages of systole? Describe the relaxation/contraction of the chambers and the opening/closing of valves at each substage. 4. What are the substages of diastole? Describe the relaxation/contraction of the chambers and the opening/closing of valves at each substage. ...
Comparative Vertebrate Physiology
Comparative Vertebrate Physiology

... Pulmonary circuit ...
Diagnostic procedures in cardiology
Diagnostic procedures in cardiology

... tightness, commonly accompanied by anxiety or uneasiness. Protracted episodes suggest myocardial infarction Location: retrosternal or precordial. (The pain nearly always involves the sternal region.) Radiation: throat, lower jaw, shoulders, inner arms, upper abdomen or back Precipitation: exertion, ...
Electrocardiography - BLUE CROSS HOSPITAL
Electrocardiography - BLUE CROSS HOSPITAL

... The electrocardiography is a technique of recording the bio-electric currents generated by the heart. The graphical display of this recording is called electrocardiogram. The acronym ECG, refers in general to both electrocardiogram and electrocardiography. Sometimes, the acronym EKG is used instead ...
Comparative Vertebrate Physiology
Comparative Vertebrate Physiology

... Pulmonary circuit ...
How the Heart Pumps Blood
How the Heart Pumps Blood

... interpreted by a medical provider. For example, an AED (Automated External Defibrillator) is a 3 of 4 ...
Circulatory System
Circulatory System

... • Tachycardia: Heart rate in excess of 100bpm • Bradycardia: Heart rate less than 60 bpm • Sinus arrhythmia: Heart rate varies 5% during respiratory cycle and up to 30% during deep respiration • Premature atrial contractions: Occasional shortened intervals between one contraction and succeeding, fre ...
What is AFib?
What is AFib?

... Atrial fibrillation causes the atria to beat so fast and irregularly that there is no meaningful contraction or motion in the upper chamber of the heart. There are areas in the upper chamber where blood can stay relatively stagnant when in AFib – The left atrial appendage being the most important on ...
Bi117 problem set 4 Grader: Jon
Bi117 problem set 4 Grader: Jon

... Hand2 during the later stages of cardiac development, describe one way in which you could circumvent this problem. (1pt) ...
Structure of the Heart Lab
Structure of the Heart Lab

... ___ 7. Gives rise to left and right pulmonary arteries ___ 8. Drains blood from myocardium into right atrium ...
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Heart failure



Heart failure (HF), often referred to as congestive heart failure (CHF), occurs when the heart is unable to pump sufficiently to maintain blood flow to meet the body's needs. The terms chronic heart failure (CHF) or congestive cardiac failure (CCF) are often used interchangeably with congestive heart failure. Signs and symptoms commonly include shortness of breath, excessive tiredness, and leg swelling. The shortness of breath is usually worse with exercise, while lying down, and may wake the person at night. A limited ability to exercise is also a common feature.Common causes of heart failure include coronary artery disease including a previous myocardial infarction (heart attack), high blood pressure, atrial fibrillation, valvular heart disease, excess alcohol use, infection, and cardiomyopathy of an unknown cause. These cause heart failure by changing either the structure or the functioning of the heart. There are two main types of heart failure: heart failure due to left ventricular dysfunction and heart failure with normal ejection fraction depending on if the ability of the left ventricle to contract is affected, or the heart's ability to relax. The severity of disease is usually graded by the degree of problems with exercise. Heart failure is not the same as myocardial infarction (in which part of the heart muscle dies) or cardiac arrest (in which blood flow stops altogether). Other diseases that may have symptoms similar to heart failure include obesity, kidney failure, liver problems, anemia and thyroid disease.The condition is diagnosed based on the history of the symptoms and a physical examination with confirmation by echocardiography. Blood tests, electrocardiography, and chest radiography may be useful to determine the underlying cause. Treatment depends on the severity and cause of the disease. In people with chronic stable mild heart failure, treatment commonly consists of lifestyle modifications such as stopping smoking, physical exercise, and dietary changes, as well as medications. In those with heart failure due to left ventricular dysfunction, angiotensin converting enzyme inhibitors or angiotensin receptor blockers along with beta blockers are recommended. For those with severe disease, aldosterone antagonists, or hydralazine plus a nitrate may be used. Diuretics are useful for preventing fluid retention. Sometimes, depending on the cause, an implanted device such as a pacemaker or an implantable cardiac defibrillator may be recommended. In some moderate or severe cases cardiac resynchronization therapy (CRT) may be suggested or cardiac contractility modulation may be of benefit. A ventricular assist device or occasionally a heart transplant may be recommended in those with severe disease despite all other measures.Heart failure is a common, costly, and potentially fatal condition. In developed countries, around 2% of adults have heart failure and in those over the age of 65, this increases to 6–10%. In the year after diagnosis the risk of death is about 35% after which it decreases to below 10% each year. This is similar to the risks with a number of types of cancer. In the United Kingdom the disease is the reason for 5% of emergency hospital admissions. Heart failure has been known since ancient times with the Ebers papyrus commenting on it around 1550 BCE.
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